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Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper
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TY - GEN
T1 - A dynamic neural field model of vowel diphthongisation
AU - Kirkham, Sam
AU - Strycharczuk, Patrycja
N1 - Conference code: 13th
PY - 2024/5/13
Y1 - 2024/5/13
N2 - We advance a computational model of vowel diphthongisation that situates phonological representations in dynamic neural fields (DNFs), which represent the time-varying activation of neural populations that are sensitive to a given phonetic parameter range. We model all long vowels as two separate inputs to the DNF, with input timing governed by a coupled oscillator model that generates an anti-phase relationship between inputs. The location of time-varying maximum activation in the DNF forms a noisy dynamic target, which is used as input to a task dynamic model of gestural coordination. We find that spatial characteristics of long vowels are well captured by the model, which exhibits gradient variation between monophthongs and diphthongs. We also show that a simplified model of production/perception can simulate changes in a speaker’s phonological planning representations, which could represent a mechnnism behind sound change if transmitted across a community.
AB - We advance a computational model of vowel diphthongisation that situates phonological representations in dynamic neural fields (DNFs), which represent the time-varying activation of neural populations that are sensitive to a given phonetic parameter range. We model all long vowels as two separate inputs to the DNF, with input timing governed by a coupled oscillator model that generates an anti-phase relationship between inputs. The location of time-varying maximum activation in the DNF forms a noisy dynamic target, which is used as input to a task dynamic model of gestural coordination. We find that spatial characteristics of long vowels are well captured by the model, which exhibits gradient variation between monophthongs and diphthongs. We also show that a simplified model of production/perception can simulate changes in a speaker’s phonological planning representations, which could represent a mechnnism behind sound change if transmitted across a community.
U2 - 10.21437/issp.2024-52
DO - 10.21437/issp.2024-52
M3 - Conference contribution/Paper
SP - 205
EP - 208
BT - Proceedings of the 13th International Seminar on Speech Production
A2 - Fougeron, Cécile
A2 - Perrier, Pascal
PB - International Speech Communication Association
T2 - ISSP 2024 : 13th International Seminar on Speech Production
Y2 - 13 May 2024 through 17 May 2024
ER -